Data mining is at the core of the knowledge discovery process. However, an initial preprocessing step is crucial for assuring reliable results within this process. Preprocessing of data is a time-consuming and non-trivial task since data quality issues should be…

Obtaining an implementation of a data warehouse is a complex task that forces designers to acquire wide knowledge of the domain, thus requiring a high level of expertise and becoming it a prone-to-fail task. Based on our experience, we have…

Actualmente, existen diversas metodologías que brindan soporte al desarrollo de RIAs haciendo énfasis en la etapa de desarrollo e implementación. Sin embargo, no consideran una etapa de análisis de requisitos específica para RIAs que resulta necesaria para poder determinar en…

Se citan once especies del género Enicospilus Stephens en diferentes localidades españolas, con lo cual se incrementa el conocimiento sobre su distribución geográfica. E. unicallosus (Vollenhoven, 1878) constituye nueva cita para España y E. perlatus Shestakov, 1926 hebraicator Aubert se…

Results of the study of Ichneumoninae, collected in light traps are reported. The genera Gnatichneumon and Cyclolabus and the species Dicaelotus pudibundus, Gnatichneumon mandibulator, Cyclolabus dubiosus, Platylabus iridipennis, Coelichneumon (Coelichneumon) desinatorius are new records for the Spanish fauna.

The effectiveness of marine protected areas (MPAs) and the conservation of marine environments must be based on reliable information on the quality of the marine environment that can be obtained in a reasonable timeframe. We reviewed studies that evaluated all…

Global discourse structures and local discourse relations are complementary modes of textual organization which an automated text generation system must account for and treat as interactive knowledge resources. To illustrate this interaction, we analyse a medical case report in terms…

La figura de Luis del Mármol Carvajal, uno de los grandes cronistas de la guerra de los moriscos, ha de ser reivindicada como la de un personaje no sólo de gran conocimiento de los hechos y de abundante caudal informativo,…

El éxito en la búsqueda de conocimiento a partir de grandes cantidades de datos radica en la calidad de los mismos. Hasta ahora los aspectos de calidad de los datos se han enfocado principalmente a la limpieza de los datos:…

One of the most difficult problems that humanity currently faces is the sustainable development of our society, i.e. how to meet the needs of the present without compromising the ability of future generations to meet their own needs. Solving this…